Demos: Fix small typos
Dialog: Keep track of instances to focus when elements outside the dialog get focus. Works with inheritance. Adds tests for both. Fixes #9241 - Dialog: UI dialog inheritance causes undefined property '_focusTabbable' in IE9
Menu tests: Force line height to ensure we know how many items will be scrolled.
Tests: Cleanup visual theme test
Demos: There can be only one button.js
Dialog & Resizable: css styles fixed NE,SE,S,E handles. Fixed #9521 ui.Dialog:Resizable dialogs move/resize out of viewport boundary - which results in scrollbar